EIA Study- Final Report-May 10 - UNDP

Environmental Impact Assessment
Khan Younis Wastewater Treatment Plant May 2010
Fauna:
The fauna in the project area consists of birds, some rodents, and snakes. During the
construction phase of the KY WWTP, these animals will be disturbed and their habitat
affected. The physical existence of the plant might scare the birds from nesting around
the site.
Effluent of the KY WWTP will have a minor impact on the soil microorganisms,
particularly beyond the immediate vicinity of the plant. In dry season, the plant effluents
can become a water source for the wild animals and birds.
6.5. Trans-boundary impacts
6.5.1. Potential Impacts on Water Environment
In order to study the lateral groundwater flow across the Gaza Strip borders, the model
domain area is divided into 5 different zones as described in figure 6.5. Zone 1 represents
the water balance outside Khan Younis and Rafah Governorates, while Zone 2 and 3 are
presenting the water balance in Rafah and Khan Younis Governorate respectively. Zone
4 presents the water balance around the infiltration basins with 500m radius and Zone 5
is the Tran boundary zone between the infiltration basins and zone 1. This zone is 500m
away from the infiltration basins and 2 Km wide.
Figure 6.5: Water Balance Zone Area Location
Table 6.4, presents the water volume across zone 5 in both direction. The results shows
that the natural flow is from east to west and it is keeping its flow until the end of year
2020, where afterwards (year 2025) the flow direction tries to become from west to the
east by an amount of about 690 m3/d. This is expected if no action is taken to keep the
groundwater inside the political border of the Gaza Strip and that by installing recovery
and/or extraction wells at the upper and downstream of created dome of the infiltrated
wastewater.
SOGREAH/UG CONSULTANTS 110